forked from Imagelibrary/rtems
a3c71238a2
* comm/gdb_glue.c, irq/idt.c, irq/irq.c, irq/irq.h, irq/irq_asm.S, irq/irq_asm.h, irq/irq_init.c: URL for license changed.
31 lines
1018 B
C
31 lines
1018 B
C
/* irq_asm.h
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*
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* This include file has defines to represent some contant used
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* to program and manage the Intel 8259 interrupt controller
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*
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*
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* COPYRIGHT (c) 1998 valette@crf.canon.fr
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*
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* The license and distribution terms for this file may be
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* found in found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifndef __IRQ_ASM_H__
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#define __IRQ_ASM_H__
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#define BSP_ASM_IRQ_VECTOR_BASE 0x20
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/* PIC's command and mask registers */
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#define PIC_MASTER_COMMAND_IO_PORT 0x20 /* Master PIC command register */
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#define PIC_SLAVE_COMMAND_IO_PORT 0xa0 /* Slave PIC command register */
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#define PIC_MASTER_IMR_IO_PORT 0x21 /* Master PIC Interrupt Mask Register */
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#define PIC_SLAVE_IMR_IO_PORT 0xa1 /* Slave PIC Interrupt Mask Register */
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/* Command for specific EOI (End Of Interrupt): Interrupt acknowledge */
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#define PIC_EOSI 0x60 /* End of Specific Interrupt (EOSI) */
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#define PIC_EOI 0x20 /* Generic End of Interrupt (EOI) */
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#endif
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